Super hydrophilic poly(ethylene terephthalate) (PET)/poly(vinyl alcohol) (PVA) composite fibrous mats with improved mechanical properties prepared via electrospinning process

Li, Guihe; Zhao, Yuming; Lv, Meng‐Qing; Shi, Yan; Cao, Ding

doi:10.1016/j.colsurfa.2013.07.014

Cited by 67 publications

(49 citation statements)

References 42 publications

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“…Considering that electrospun mats are porous materials with high values of roughness, the condition for imbibition is easily achieved, and for any value of φ s , θ c tends to be close to 90°, as shown in the insert in Figure 1. This explains the recurrent switch (ON/OFF) mechanism found for the contact angle of electrospun mats, from hydrophobic or superhydrophobic rough surfaces with high contact angle values to superhydrophilic absorbing porous structures with contact angle zero 10,12,22,23,24 .…”

Section: Methodsmentioning

confidence: 99%

“…This can be achieved by hydrolysis 4,5 , plasma 8 , immersion precipitation 9 , etc., but this adds time and cost. Another approach is to use polymer blending to incorporate hydrophilic 10 or amphiphilic 11,12 polymers in the hydrophobic matrix to alter the surface properties of the fibers. Previously 13 , we have shown that mats of elastomeric poly(styrene)-b-poly(ethylene-butylene)-b-poly(styrene) (SEBS) could be hydrophilized by blending it with amphiphilic poly(ethylene oxide)-b-poly(propylene oxide)-b-poly(ethylene oxide) (PEO-PPO-PEO).…”

Section: Introductionmentioning

confidence: 99%

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Wetting of Hydrophilic Electrospun Mats Produced by Blending SEBS with PEO–PPO–PEO Copolymers of Different Molecular Weight

Kurusu

Demarquette

2016

Langmuir

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The interaction of electrospun mats with water is critical for many possible applications, and the water contact angle on the surface is the parameter usually measured to characterize wetting. Although useful for hydrophobic surfaces, this approach is limited for hydrophilic mats, where wicking has also to be considered. In this case, it is still unclear how the fiber surface chemical composition and morphology will affect the wetting behavior of electrospun mats. In this work, wetting was studied with different hydrophilic membranes produced by blending thermoplastic elastomer SEBS with amphiphilic PEO-PPO-PEO molecules. Three different types of PEO-PPO-PEO, with different molar masses, PEO content and physical form were used. The effect of these differences on the wetting behavior of the electrospun mats was evaluated by contact angle goniometry, wicking measurements and 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 2 different imaging techniques. X-ray photoelectron spectroscopy was used to characterize the surface chemical composition. The smaller molecules quickly saturated the surface at low concentrations, making the mats hydrophilic. The sheath of PEO-PPO-PEO also resulted in fast absorption of water, when comparing the saturated and non-saturated surfaces. Longer PEO chain-ends seemed to hinder complete segregation and also led to a higher activation time when in contact with water. Liquid PEO-PPO-PEO was easily leached by water.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Wetting of Hydrophilic Electrospun Mats Produced by Blending SEBS with PEO–PPO–PEO Copolymers of Different Molecular Weight

Kurusu

Demarquette

2016

Langmuir

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“…These membranes have a highly hydrophilic nature, which is considered as an advantage for some applications, but in most cases it becomes a hindrance due to the high swelling capacity of the membranes in water. To enhance the stability and performance of PVA-based membranes, a variety of chemical modifications have been employed, e.g., cross-linking [5][6][7], electrospinning [8][9][10], blending [11], sol-gel process [12,13], and grafting [14,15].…”

Section: Introductionmentioning

confidence: 99%

Comparative study of PVA/SiO2 and PVA/SiO2/glutaraldehyde (GA) nanocomposite membranes prepared by single-step solution casting method

et al. 2015

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We prepared poly(vinyl alcohol) (PVA)/SiO 2 and PVA/SiO 2 /glutaraldehyde (GA) nanocomposite membranes in a single step using the solution casting method. The structure, morphology, and properties of these nanocomposite membranes were characterized by Raman spectroscopy, atomic force microscopy, small-and wideangle X-ray scattering, thermogravimetric analysis, differential scanning calorimetry, and dynamic mechanical analysis (DMA). The influence of silica and GA loading on the meso-scale characteristics of the composite membranes was investigated. The results showed that silica deposited in the form of small nanoparticles (*1 nm) in the PVA/ SiO 2 membranes, while bigger submicron particles ([25 nm) were formed in the PVA/SiO 2 /GA membranes. The water uptake of the PVA/SiO 2 membranes increased with temperature, but the PVA/SiO 2 /GA membranes were completely dissolved above 50°C. We can therefore conclude that the addition of GA deteriorated the properties of PVA/SiO 2 membranes. The thermal stability of the PVA/ SiO 2 membranes increased with the increasing silica loading with a maximum char yield of 46 % for PVA/SiO 2 / 4T. Even DMA profiles indicated a promising increase in E R (rubbery modulus) from 6 MPa (PVA membrane) to 1015 MPa (PVA/SiO 2 /4T) at 250°C, showing high mechanical strength of these membranes.

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“…However, the poor hydrophilicity of PET fabric was the bottleneck and limited the applications not only in clothing but also in biomedicine and bioengineering. It makes PET fabric uncomfortable to wear [3] and also precludes functional modifications, such as adding antimicrobial agents or flame retardants [4].…”

Section: Introductionmentioning

confidence: 99%

Facile preparation of super-hydrophilic poly(ethylene terephthalate) fabric using dilute sulfuric acid under microwave irradiation

Zhang

et al. 2015

Applied Surface Science

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Super hydrophilic poly(ethylene terephthalate) (PET)/poly(vinyl alcohol) (PVA) composite fibrous mats with improved mechanical properties prepared via electrospinning process

Cited by 67 publications

References 42 publications

Wetting of Hydrophilic Electrospun Mats Produced by Blending SEBS with PEO–PPO–PEO Copolymers of Different Molecular Weight

Wetting of Hydrophilic Electrospun Mats Produced by Blending SEBS with PEO–PPO–PEO Copolymers of Different Molecular Weight

Comparative study of PVA/SiO2 and PVA/SiO2/glutaraldehyde (GA) nanocomposite membranes prepared by single-step solution casting method

Facile preparation of super-hydrophilic poly(ethylene terephthalate) fabric using dilute sulfuric acid under microwave irradiation

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